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研究成果藝廊

次毫米波陣列計畫

High resolution map of Seyfert 1/ starburst ring galaxy NGC 1097
圖片來源: Hsieh et al.
High resolution map of Seyfert 1/ starburst ring galaxy NGC 1097
Left - CO(J = 2-1) integrated map (contours) overlaid on the archival HST I-band image (color). Right - HST NICMOS Pa α line image (color) overlaid on the CO(J = 2-1) contour
The SMA has been playing an important role in studying extragalactic objects. One of our targets is the Seyfert 1/ starburst ring galaxy NGC 1097. The CO 2–1 image at 1.5" x 1.0" (105 x 70 pc) resolution shows a central concentration and a ring-like structure at a radius of ~10” (700 pc). The high resolution map obtained with the SMA for the first time resolves the molecular ring into individual clumps at giant molecular association (GMA) scale of 200–300 pc. The morphology of the molecular gas is tightly correlated to the optical features. (Hsieh et al. 2011, ApJ, 736, 129)
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